• Journal of Veterinary Clinics
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• v.19 no.2
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• pp.250-252
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• 2002

A 14-year-old female Gill's bottle-nosed dolphin died after having 1 month history of depression, anorexia, and respiratory insufficiency. At necropsy, numerous well-demarcated tan firm nodules in variable sizes ranging from 2 m to 3 cm in diameter were scattered throughout the lung lobes. Histologically, the pulmonary nodules formed typical granulomatous inflammation. Center of the granulomatous foci consisted of necrotic center with gram positive cocci surrounded by eosinophilic Splendore-Hoeppli material then by macrophages, epithelioid cells, multinucleated giant cells, a few lymphocytes and fibroblasts. The is the first report of pulmonary botryomycosis in dolphin in Korea.

• Journal of Welding and Joining
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• v.14 no.3
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• pp.41-47
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• 1996

The spot weldability of coated steels for automobile has been investigated. Coated steels of SPC-Zn DC, SPC Zn-Ni SC, SPC Zn-Ni DC, SPC Zn-Fe DC and OCCS were welded under different conditions of welding current, force and time. Coating thickness at the welded surface was reduced as increased welding current. Tensile shear strength(TSS) and cross tensile strength (CTS) were increased up to expulsion began, then dropped as increased current. Optimum conditions of welding force and time were different, however 200~250kgf and 15~20cycle were optimum for coated SPC (Steel Plate Cold). Weldability lobes were measured for each coated steel and they showed narrow range of working welding current. The organic composite coated steel (OCCS) had the highest current to get $\sqrt5{t}$ nugget size and narrowest working welding current range.

• Journal of Chest Surgery
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• v.11 no.4
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• pp.456-460
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• 1978

Desmoid tumor is found most often in the anterior abdominal wall of parous women. Although it may originate in virtually any musculotendinous structure, those of the chest wall are rare. We experienced a case of large dumb bell shaped desmoid tumor originated in intercostal muscle and invaded anterior chest wall, pericardium, pleura and the lung. The patient was healthy in appearance except a painful swelling on the anterior chest wall. Roentgenographic studies demonstrated a huge homogenous mass in the right anterior chest cavity. He was treated with resection of the tumor including .anterior chest wall, a portion of the pericardium, middle lobe, and part of upper & lower lobes of the right lung because of tumor invasion. The tumor composed with two parts, one [$5{\times}4{\times}3$cm in size] is over the rib cage and another [$10{\times}15{\times}10$cm in size] is in the right chest cavity. Postoperative course was uneventful and there was no evidence of recurrence until last visit, 5 months after surgery.

• Journal of Chest Surgery
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• v.13 no.1
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• pp.66-71
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• 1980

This is one case report of coexisting two histologically different carcinomas in the different lobes of the right lung, which operated the right pneumonectomy in the Dept. of Thoracic and Cardiovascular Surgery Hanyang University Hospital. The 43 years old male patient complained coughing, blood tinged sputum and weight loss. The chest films [PA and lateral view] showed a small round hazy shadow in the posterior segment of the right upper lobe and irregular hazy densities in the right middle lobe and hilar area. Histopathologically, the tumor in the posterior segment of the right upper lobe was consisted of a tissue of adenocarcinoma and the tumor in the right middle lobe was consisted of a tissue of well-differentiated bronchial squamous cell carcinoma.

• Journal of Gastric Cancer
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• v.15 no.2
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• pp.143-146
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• 2015

Sarcomatoid carcinoma of the small intestine is rare, and only 30 cases have been reported to date. This disease generally exhibits a very poor prognosis. Here we report the case of a 67-year-old man with a sarcomatoid carcinoma in the jejunum, who was hospitalized for diarrhea, fever, nausea, and vomiting. The tumor was located at the jejunum and had a large round shape with geographic necrosis. It involved the entire wall of the small intestine and had directly invaded the neighboring sigmoid colon. Both lobes of the liver had multiple metastases. The patient underwent surgical resection of the jejunum. On immunohistochemical analysis, the tumor was positive for epithelial and mesenchymal markers. The patient died from rapid progression of the liver metastases 6 weeks after the surgery.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.10 no.5
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• pp.738-746
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• 1999

In this paper, a microstrip $18\times2$ dual beam array antenna is designed at 10 GHz. The radiating element is an aperture-coupled patch, and it is analyzed by the transmission line model. The feed is a tapered parallel-series type to reduce the side lobe level. To obtain dual beam at $\pm45^{\circ}$, The difference in phase excitation between the elements is $180^{\circ}$. In conclusion, the side lobe level is 25 dB, and the beam width $8^{\circ}$with two main lobes at $\pm44.5^{\circ}$.

• Journal of Veterinary Clinics
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• v.21 no.4
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• pp.413-415
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• 2004

A male Blue-fronted amazon parrot suddenly died after having a history of depression, anorexia and emaciation. At necropsy, numerous well-demarcated yellow to white firm nodules were scattered throughout the left caudal lung lobes and adjacent air sac. Histologically, the wall of air sac was significantly thickened due to necrosis and infiltration of large numbers of fungi and degenerated heterophils. Multifocal necrotizing granulomatous lesions with numerous fungal hypae as well as vasculitis and thrombosis were found in tl1e lung. The fungi had conidiophore, vesicle, phialides and conidia which were characteristic of Aspergillus sp. This is tl1e first report of mycotic air sacculitis and pneumonitis caused by Aspergillus in a parrot in Korea.

• Journal of the Optical Society of Korea
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• v.18 no.2
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• pp.101-109
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• 2014

In this paper, four apodization functions are proposed for silicon-on-insulator (SOI) strip waveguides with sidewall-corrugated gratings. The effects of apodization functions on the full width at half maximum (FWHM), the side-lobe level, and the reflectivity of the reflection spectrum are studied using the coupled-mode theory (CMT) and the transfer-matrix method (TMM). The results show that applying proposed apodization functions creates very good filtering characteristics. Among investigated apodized waveguides, the apodization functions of Polynomial and z-power have the best performance in reducing side-lobes, where the side-lobe oscillations are entirely removed. Four functions are also used for precise adjustment of the bandwidth. Simulation results show that the minimum and maximum values of the FWHM are 0.74 nm and 8.48 nm respectively. In some investigated functions, changing the apodization parameters decreases the reflectivity which is compensated by increasing the grating length.

• Journal of the Optical Society of Korea
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• v.15 no.2
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• pp.118-123
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• 2011

A novel triangular-shaped plasmonic metal-insulator-metal (MIM) Bragg grating waveguide is introduced, whose band-gap is narrower than that of the conventional step type and wider than that of the sawtoothshaped one. Moreover apodized triangular-shaped MIM Bragg grating structures are proposed in order to reduce the side lobes of the transmission spectrum, because the Bragg reflector with a sawtooth profile has a smoother transmission spectrum than that of a triangular-shaped one. The performance of the proposed structures is simulated by using the finite difference time domain method.

• Korean Journal of Veterinary Research
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• v.7 no.2
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• pp.25-30
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• 1967

Pathological studies, on the lung of 27 cases of bovine parasitic bronchitis which were secured from abattoirs in Korea, were performed and discussed. The chief pathological findings were as follows. Grossly, the lungs were shown various degree of lobular consolidation, collapse and alveolar emphysema around the bronchi in which nematodes of Dictyocaulus viviparus were present. Emphysema and edema were observed in the interlobular septa. The lesions were encountered mostly in the caudal and ventral borders of the diaphragmatic lobes. In all the cased of parasitic bronchitis in which thickening of the visceral pleura and fibrinous deposition on the pleural surfaces were not seemed to be entirely due to the lungworm infection. Microscopically, bronchopneumonia, peribronchial and peribronchiolar lymphoid hyperplasia, lympho-reticular broncho-occlusive legion, and bleakthrough lesion were examined in the affected lungs.